Individual autonomy is not the cause of our problems and state autonomy is not the solution.

"Nationalism is not to be confused with patriotism," George Orwell wrote in 1945. "Both words are normally used in so vague a way that any definition is liable to be challenged, but one must draw a distinction between them, since two different and even opposing ideas are involved."

In The Case for Nationalism (Broadside Books), Rich Lowry has decided, rather boldly, to go up against Orwell and stake out the inverse position: To be a nationalist, he says, is merely to feel a glow of pride in one's country, to recognize it as possessing a particular cultural character that differentiates its citizens from all others, and to insist on its sovereignty in the face of crusading outside forces. Nationalism and patriotism, in other words, are essentially interchangeable.

The exemplar for Lowry is thus Joan of Arc, the legendary French teenager who, in the 15th century, helped drive the British army from her country before being captured and burned at the stake. "Joan both expressed the national identity of France—a chosen people ruled by 'the most Christian' king and inhabiting their own distinct land—and came to represent it," the National Review editor writes in his new book.

The United States is not, of course, at risk of invasion by England or any other country on Earth. But in Lowry's view, our national unity is under attack from both without and within. The rise of "neo-imperial" governing institutions such as the United Nations and the International Criminal Court threatens to usurp Americans' right to self-determination. Meanwhile, a bevy of leftist scholars—the late Howard Zinn figures prominently—employ revisionist history and identity politics to seed discord and disdain among the people.

Lowry's post atop the National Review masthead, and his pedigree as the hand-picked inheritor of William F. Buckley Jr.'s job, have long made him an avatar of respectable, mainstream conservatism. So his choice of Joan—a literal saint in the eyes of much of the world—is no accident. It's strategic, meant to reinforce the notion that his is a righteous nationalism, in contrast with the more noxious forms so often seen in history. Indeed, Lowry is one of a handful of influential conservatives who have begun working to rehabilitate the nationalist brand by arguing that it need not, after all, be associated with racism, fascism, or military conquest.